[ofiwg] libfabric fi_getinfo question
v.tolstov at selfip.ru
Thu Jul 16 16:55:23 PDT 2015
2015-07-17 0:11 GMT+03:00 Ilango, Arun <arun.ilango at intel.com>:
> The verbs provider uses rdma_cm internally for setup and establishing connections. I believe rdma_cm needs IPoIB to be functional to resolve hostnames to IB addresses.
> Does your setup not have IPoIB?
Yes, i don't have ipoib and i think that it does not needed, but as i
see nobody use rdma without ipoib. As i see i can operate by node gid
or scan full subnet and iterate on each node, in this case i can write
hostname to node_desc and while scanning subnet - check node_desc with
needed name, if it matches - return gid, lid and other needed params
to establish connection.
ibnetdiscover have this feature , but have many code around, so
extract needed parts not very simple.
> By the way, hints->addr_format corresponds to the addresses specified in hints->src_addr and hints->dest_addr.
e-mail: v.tolstov at selfip.ru
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